black hole

Etymology
In reference to celestial bodies, physicist attributed the term to his colleague, who stated around 1960–1961 that the objects were "like the ". The first known usage in print was by journalist Ann Ewing in 1964. Widespread popularization of the term is generally credited to a 1967 lecture by physicist.

Noun

 * 1) A place of punitive confinement; a lockup or cell; a military guardroom.
 * 2) * 1808–10,, Memoirs of a Georgian Rake, Folio Society 1995, p. 282:
 * ‘I will convince you that I do know [my duty] by clapping you for the remainder of the night into the black hole, young gentleman, do you see, and have no doubt but the air of that agreeable apartment will restore your senses.’
 * 1)  A gravitationally domineering celestial body with an event horizon from which even light cannot escape; the most dense material in the universe, condensed into a singularity, usually formed by a collapsing massive star.
 * 2)  A void into which things disappear, or from which nothing emerges; an impenetrable area or subject; an area impervious to communication.
 * 3) * 2004 November 16, Jenifer Hanen, “How I fell down an Internet Black Hole....”, Black Phoebe, at
 * I finished some client work and gave myself 30 minutes to fall down one of my favorite internet black holes: genealogical research. Four hours plus some later, my eyes were burning in my head
 * 1)  A dangerous optical illusion that can occur on a nighttime approach with dark, featureless terrain between the aircraft and a brightly-lit runway, where the aircraft appears to the pilots to be higher up than it actually is, potentially triggering a premature or overly-steep descent and a crash short of the runway.
 * 2)  A place where incoming traffic is silently discarded.
 * One way of fighting spam is to use a blackhole list maintained on a blackhole server.
 * 1)  A bit bucket; a place of permanent oblivion for data.
 * 1)  A dangerous optical illusion that can occur on a nighttime approach with dark, featureless terrain between the aircraft and a brightly-lit runway, where the aircraft appears to the pilots to be higher up than it actually is, potentially triggering a premature or overly-steep descent and a crash short of the runway.
 * 2)  A place where incoming traffic is silently discarded.
 * One way of fighting spam is to use a blackhole list maintained on a blackhole server.
 * 1)  A bit bucket; a place of permanent oblivion for data.
 * One way of fighting spam is to use a blackhole list maintained on a blackhole server.
 * 1)  A bit bucket; a place of permanent oblivion for data.

Hypernyms

 * hole

Related terms




Translations

 * Afrikaans: swartgat
 * Albanian: vrimë e zezë
 * Arabic: ثُقْب أَسْوَد
 * Armenian: սև խոռոչ
 * Asturian: furacu prietu, fueyu prietu
 * Azerbaijani: qara dəlik, qara çuxur
 * Basque: zulo beltz
 * Belarusian: чо́рная дзіра́
 * Bengali:, , ,
 * Bulgarian: че́рна ду́пка
 * Catalan:
 * Chechen: ӏаьржа ӏуьрг
 * Chinese:
 * Cantonese: 黑洞
 * Hokkien: 烏空
 * Mandarin:
 * Cornish: toll du
 * Czech:
 * Danish: sort hul
 * Dutch:
 * Esperanto:
 * Estonian:
 * Finnish:
 * French:
 * Galician:
 * Georgian: შავი ხვრელი
 * German:
 * Greek:, μελανή οπή
 * Gujarati: કૃષ્ણ વિવર
 * Hebrew:
 * Hindi: काल कोठरी
 * Hungarian:
 * Icelandic:
 * Ido: nigra truo
 * Indonesian: lubang hitam
 * Ingush: ӏаьржа ӏург
 * Interlingua: cavo nigre
 * Irish: dúpholl
 * Italian:
 * Japanese:
 * Kannada:
 * Kazakh: қара құрдым
 * Korean:
 * Kurdish:
 * Central Kurdish: کونەڕەش
 * Kyrgyz: кара көңдөй
 * Lao:
 * Latin: foramen nigrum
 * Latvian: melnais caurums
 * Lithuanian: juodoji skylė
 * Lombard: büüs negru
 * Luxembourgish: schwaarzt Lach
 * Macedonian: црна дупка
 * Malay:
 * Malayalam: തമോദ്വാരം,
 * Maltese: toqba sewda
 * Marathi: कृष्णविवर
 * Mingrelian: უჩა რხვილი
 * Mongolian:
 * Northwestern Ojibwa: makade-waanikaan
 * Norwegian:
 * Bokmål: svart hull, sort hull
 * Nynorsk: svart hòl
 * Persian: سیاه‌چاله فضایی, سیاه‌چاله
 * Polish:
 * Portuguese:
 * Romanian:
 * Russian: чёрная дыра́
 * Samogitian: jouduojė skīlie
 * Serbo-Croatian:
 * Arebica: ڄرنآ رۆپآ
 * Cyrillic: црна рупа
 * Roman: crna rupa
 * Sicilian: purtusu nìguru
 * Slovak: čierna diera
 * Slovene:
 * Spanish: ,
 * Svan: მეშხე ჴურუ
 * Swahili: shimo jeusi
 * Swedish:
 * Tagalog: itim na butas
 * Tamil:
 * Telugu: కాలబిలము
 * Thai:
 * Turkish:
 * Ukrainian: чо́рна діра́
 * Urdu: ثقب اسود
 * Uzbek: qora tuynuk
 * Vietnamese: hố đen (㙤𪓇), (𥩍𪓇)
 * Volapük: siblägahog
 * Welsh: twll du
 * Yiddish: שוואַרצע לאָך, שוואַרצלאָך

Verb

 * 1)  To redirect (network traffic, etc.) nowhere; to discard (incoming traffic).